Question regarding writing data to txt file

Hi,

I have the following matrices:

A = [10,8,6;1,4,5]
B = [3,4,7;8,9,10]

I would like to print my data to a txt file that displays the name of the matrix, followed by row and column index of the data followed by the specific value for that column and row. For example:

A,1,1,10,1,2,8,1,3,6,2,1,1,2,2,4,2,3,5
B,1,1,3,1,2,4,1,3,7,2,1,8,2,2,9,2,3,10

Please help!..I am new to matlab

Answer 1

[Image Analyst]

This should be rather straightforward and easy to understand. If not, ask.

A = [10,8,6;1,4,5]
B = [3,4,7;8,9,10]

fid = fopen('delete_me.txt', 'wt');
% Print out the line for A
[rows, columns] = size(A);
fprintf(fid, 'A');
for col = 1 : columns
  for row = 1 : rows
    fprintf(fid, ',%d,%d,%d', row, col, A(row, col));
  end
end
% Now for the B matrix.
[rows, columns] = size(B);
fprintf(fid, '\nB');
for col = 1 : columns
  for row = 1 : rows
    fprintf(fid, ',%d,%d,%d', row, col, B(row, col));
  end
end
fclose(fid);
% In the file, there should be this:
% A,1,1,10,1,2,8,1,3,6,2,1,1,2,2,4,2,3,5
% B,1,1,3,1,2,4,1,3,7,2,1,8,2,2,9,2,3,10

Answer 2

[Azzi Abdelmalek]

A = [10,8,6;1,4,5]
[n,m]=size(A)
[ii,jj]=ind2sub(size(A),1:numel(A))
iA=reshape(ii,n,m)'
jA=reshape(jj,n,m)'
A=A'
s1=sprintf('%d,%d,%d,',[iA(:)';jA(:)';A(:)'])

[jana]

Thank you! but, using sprintf I cannot print my data to a txt file. Is there any other command that I can use?

[Azzi Abdelmalek]

A = [10,8,6;1,4,5]
[n,m]=size(A)
[ii,jj]=ind2sub(size(A),1:numel(A))
iA=reshape(ii,n,m)'
jA=reshape(jj,n,m)'
A=A'
fid=fopen('file.txt','w')
fprintf(fid,'%d,%d,%d,',[iA(:)';jA(:)';A(:)'])
fclose(fid)